Prime Minister Jacinda Ardern has said New Zealand expects to administer a record 100,000 Covid-19 vaccine doses in a single day during a mass immunisation drive on October 16 as she seeks to accelerate inoculations before easing curbs in Auckland, Reuters reports.

Ardern has urged the country's population over 12 years of age "to roll up sleeves for New Zealand and help make us [one of] the most vaccinated and therefore protected countries in the world".

Some 2.44 million, or 58 per cent of the population over 12, have been fully vaccinated so far.

"There is nothing stopping us other than people [not] showing up," Ardern said during a media briefing in Wellington.